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HLMP1790MP4A LED Circuit Board Indicator Equivalent & Substitute Parts
Part Overview
The HLMP1790MP4A is a 3mm green diffused LED circuit board indicator manufactured by onsemi, designed for through-hole, right-angle mounting applications. This component operates at 1.9V with a 2mA rated current and delivers 2.3mcd luminous intensity at a 565nm peak wavelength. The part is currently obsolete, making equivalent and substitute parts necessary for ongoing design support, maintenance, and new production requirements.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Manufacturer Part Number | HLMP1790MP4A |
| Manufacturer | onsemi |
| Product Status | Obsolete |
| Color | Green |
| Wavelength - Peak | 565nm |
| Configuration | Single |
| Current Rating | 2mA |
| Millicandela Rating | 2.3mcd |
| Viewing Angle | 50° |
| Lens Type | Diffused, Tinted |
| Lens Style | Round with Domed Top |
| Lens Size | 3mm, T-1 |
| Voltage Rating | 1.9V |
| Mounting Type | Through Hole, Right Angle |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) |
| REACH Status | REACH Unaffected |
| ECCN | EAR99 |
Substitute Part Grouping Explanation
Substitution eligibility for the HLMP1790MP4A is determined by the following critical parameters:
Direct Equivalents — Parts that maintain identical electrical and mechanical specifications:
- Color: Green
- Wavelength - Peak: 565nm
- Configuration: Single
- Current: 2mA
- Millicandela Rating: 2.3mcd
- Lens Type: Diffused, Tinted
- Lens Style: Round with Domed Top
- Lens Size: 3mm, T-1
- Voltage Rating: 1.9V
- Mounting Type: Through Hole, Right Angle
Similar Substitutes — Parts that share the same lens size (3mm, T-1), mounting type (through hole), color (green), and lens characteristics (diffused, domed top) but differ in electrical parameters (voltage, current, or luminous intensity). These parts are functionally compatible in applications where the circuit design accommodates the different electrical specifications.
Parameter Comparison
| Parameter | HLMP1790MP4A (Main) | HLMP-1790-A00A1 | HLMP-1790-A00A2 | 3GDL-F | HLMP-1790 |
|---|---|---|---|---|---|
| Manufacturer | onsemi | Broadcom Limited | Broadcom Limited | Bivar Inc. | Broadcom Limited |
| Product Status | Obsolete | Active | Active | Active | Active |
| Color | Green | Green | Green | Green | Green |
| Wavelength - Peak (nm) | 565 | 565 | 565 | 568 | 565 |
| Configuration | Single | Single | Single | Standard | Standard |
| Current (mA) | 2 | 2 | 2 | 2 | 2 |
| Millicandela Rating (mcd) | 2.3 | 2.3 | 2.3 | 4 | 2.3 |
| Viewing Angle (°) | 50 | — | — | 35 | 50 |
| Lens Type | Diffused, Tinted | Diffused, Tinted | Diffused, Tinted | Diffused | Diffused |
| Lens Style | Round with Domed Top | Round with Domed Top | Round with Domed Top | Round with Domed Top | Round with Domed Top |
| Lens Size | 3mm, T-1 | 3mm, T-1 | 3mm, T-1 | 3mm, T-1 | 3mm, T-1 |
| Voltage Rating (V) | 1.9 | 1.9 | 1.9 | 2.1 | 1.9 |
| Mounting Type | Through Hole, Right Angle | Through Hole, Right Angle | Through Hole, Right Angle | Through Hole | Through Hole |
| RoHS Status | — | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant |
| MSL | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) |
| REACH Status | REACH Unaffected | REACH Unaffected | REACH Unaffected | — | REACH Unaffected |
Engineering Selection Recommendations
Direct Equivalents (Preferred for Drop-In Replacement)
HLMP-1790-A00A1 and HLMP-1790-A00A2 from Broadcom Limited are direct electrical and mechanical equivalents to the HLMP1790MP4A. Both parts are active products with ROHS3 compliance and REACH unaffected status, ensuring regulatory alignment for new designs and production. These parts maintain identical voltage (1.9V), current (2mA), luminous intensity (2.3mcd), wavelength (565nm), and mechanical form factor. The primary difference between these two variants is packaging configuration (both bulk), with no impact on functional performance.
Similar Substitutes (Application-Dependent)
3GDL-F from Bivar Inc. is a functional substitute suitable for applications where the circuit design accommodates a slightly higher forward voltage (2.1V typical) and higher luminous intensity (4mcd). The 3mm T-1 through-hole form factor and diffused lens characteristics maintain mechanical compatibility, though the viewing angle is narrower (35° versus 50°). This part is ROHS3 compliant and carries active product status.
HLMP-1790 from Broadcom Limited is a discrete radial-mount variant with identical electrical specifications (1.9V, 2mA, 2.3mcd, 565nm) but differs in mounting configuration (radial through-hole versus right-angle). This part is suitable only for applications where the PCB layout accommodates radial lead orientation. ROHS3 compliance and active status are confirmed.
All substitute parts carry MSL 1 (unlimited moisture sensitivity), matching the original component's environmental rating.
Frequently Asked Questions (FAQ)
Q: Can HLMP-1790-A00A1 and HLMP-1790-A00A2 be used interchangeably with HLMP1790MP4A?
A: Yes. Both Broadcom parts are direct equivalents with identical electrical specifications (1.9V, 2mA, 2.3mcd) and mechanical form factor (3mm T-1, right-angle through-hole, diffused domed lens). The packaging difference (bulk) does not affect component performance.
Q: What is the key difference between the main part and 3GDL-F?
A: The 3GDL-F operates at 2.1V forward voltage (versus 1.9V) and delivers 4mcd luminous intensity (versus 2.3mcd). The viewing angle is also narrower at 35° compared to 50°. These differences require circuit design verification to ensure compatibility with existing current-limiting resistor values and optical requirements.
Q: Why is HLMP-1790 listed as a substitute if it has a different mounting type?
A: HLMP-1790 shares identical electrical specifications and wavelength characteristics but uses radial lead configuration instead of right-angle mounting. It is a functional substitute only for designs where the PCB layout can accommodate radial lead orientation. Mechanical compatibility with existing PCB footprints cannot be assumed.
Q: Are all substitute parts RoHS compliant?
A: Yes. HLMP-1790-A00A1, HLMP-1790-A00A2, 3GDL-F, and HLMP-1790 are all ROHS3 compliant. The original HLMP1790MP4A RoHS status was not specified in the available data.
Q: What is the MSL rating for these parts?
A: All listed parts carry MSL 1 (unlimited), indicating no moisture sensitivity restrictions during storage, handling, or assembly.
Q: Can I use HLMP-1640 or HLMP-1641 as substitutes?
A: No. These parts operate at significantly higher voltages (5V and 12V respectively) and require different circuit design. While they share the same 3mm T-1 lens form factor and green color, the electrical incompatibility makes them unsuitable as direct substitutes without complete circuit redesign.
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